WO1993015632A1 - Ensemble de montage d'un accoudoir reglable - Google Patents

Ensemble de montage d'un accoudoir reglable Download PDF

Info

Publication number
WO1993015632A1
WO1993015632A1 PCT/US1993/001146 US9301146W WO9315632A1 WO 1993015632 A1 WO1993015632 A1 WO 1993015632A1 US 9301146 W US9301146 W US 9301146W WO 9315632 A1 WO9315632 A1 WO 9315632A1
Authority
WO
WIPO (PCT)
Prior art keywords
mounting
armrest
groove
frame
mounting assembly
Prior art date
Application number
PCT/US1993/001146
Other languages
English (en)
Inventor
Rex W. Stevens
Original Assignee
Quickie Designs Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Quickie Designs Inc. filed Critical Quickie Designs Inc.
Publication of WO1993015632A1 publication Critical patent/WO1993015632A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/54—Supports for the arms
    • A47C7/546—Supports for the arms of detachable type

Definitions

  • the present invention relates, generally, to armrest assemblies for wheelchairs and, more particularly, to armrest mounting assemblies.
  • Armrests are often releasably secured a portion of a wheelchair frame through an armrest mounting assembly which is rigidly affixed to the frame.
  • an armrest assembly includes an armrest pad which is mounted to an inverted, U-shaped, armrest support frame.
  • This armrest support frame includes a generally horizontal tube portion, which supports the pad, and includes a pair of downwardly extending post portions.
  • Each post portion is usually oriented in a substantially vertical manner for ease of installation and removal from the mounting assembly.
  • Each armrest mounting block or assembly generally is provided by a body which has post receiving opening therein. The post receiving openings are dimensioned to receive the distal ends of the corresponding post portions. By slightly tapering each armrest post end, the post ends gradually wedge or snugly seat against the inner walls of the mounting block as the post ends are pushed down into the armrest mounting blocks.
  • Wheelchairs generally include a seat assembly mounted to the wheelchair frame and two armrests mounted adjacent to and on opposing sides of the seat assembly.
  • Each armrest requires at least two mounting assemblies or blocks positioned in a spaced-apart relation on one side of the seat assembly, which blocks mount the armrest support frame to the wheelchair frame.
  • These mounting assemblies are usually fixedly mounted to the wheelchair frame at predetermined positions by fasteners, such as bolts.
  • the bolts extend through mounting apertures provided in the mounting assembly or block body.
  • aligned apertures are provided in the wheelchair frame so that fasteners extending through the mounting blocks and frame rigidly affix the mounting assembly to the frame. Since the spacing of the armrest mounting assemblies is fixed by fasteners to the frame, the spacing between the downwardly depending post portions of the armrest frame typically must be slightly adjusted to achieve proper alignment between the post ends and the corresponding post receiving apertures of the mounting blocks.
  • armrest post ends must be physically bent into alignment with the armrest mounting blocks. This procedure is adequate, but it can be time-consuming and is based upon a trial and error technique. Moreover, the wheelchair user also can experience armrest misalignment difficulties if they remove and re-install the armrests, particularly if the armrest assembly should be dropped during handling. Should this occur, substantial bending may again be required in order to re-install the armrest. This problem can be magnified for those users who are severely physically impaired.
  • an object of the present invention to provide an armrest mounting assembly which provides ease of adjustment of the alignment of the mounting assemblies to the spacing of the armrest posts.
  • Still another object of the present invention is to provide an armrest mounting assembly which promotes interchangeability between the armrests. It is a further object of the present invention to provide an armrest mounting assembly which is durable, compact, easy to maintain, has a minimum number of components, is easy to use by unskilled personnel, and is economical to manufacture.
  • the present invention includes an armrest mounting assembly for mounting an armrest to a wheelchair having a frame and an armrest with a mounting post.
  • the mounting assembly includes a body, which is formed to releasably receive an end of the mounting post, and releasable fasteners which couple the body to a mounting surface of the wheelchair frame.
  • the improvement in the armrest mounting assembly comprises, briefly, a frame engaging surface defined by the body and formed to supportably seat against the mounting surface of the wheelchair frame at a plurality of positions along the frame.
  • the mounting assembly further includes a mounting groove defined by the body proximate the frame engaging surface.
  • the groove is formed and dimensioned to slidably receive an enlarged head of the fastener for movement therealong through a plurality of positions along the groove when the fastener is released relative to the mounting surface. Further, the groove is dimensioned to secure the head of the fastener against rotation at the plurality of positions, for securement of the mounting assembly to the frame when the fastener is tightened. Accordingly, the present invention provides adjustable alignment of the mounting assembly to the spacing of the armrest posts, while further, facilitating installation and removal of the armrests assemblies to a wheelchair frame.
  • FIGURE 1 is a top perspective view of an adjustable armrest mounting assembly constructed in accordance with the present invention and shown in broken lines mounted to a wheelchair frame with an armrest post mounted thereto.
  • FIGURE 2 is a fragmentary, top plan view, partially broken-away, of the armrest mounting assembly of FIGURE 1.
  • FIGURE 3 is a fragmentary, front elevation view, in partial cross-section, of the armrest mounting assembly taken substantially along the plane of line 3-3 in FIGURE 2.
  • the armrest mounting assembly of the present invention permits alignment between an armrest frame assembly and armrest mounting blocks or assemblies which eases installation and removal of the armrests. While the present invention will be described with reference to a few specific embodiments, the description is illustrative of the invention and is not to be construed as limiting the invention. Various modifications to the present invention can be made to the preferred embodiments by those skilled in the art without departing from the true spirit and scope of the invention as defined by the appended claims.
  • armrest mounting assembly 20 of the present invention includes a body, generally designated 22, which defines a wheelchair frame engaging surface 24 preferably formed for mating engagement with a mounting surface 12 (FIGURE 2) of wheelchair frame 10.
  • Body 22 includes post receiving means 26 for releasably mounting an armrest assembly 14 (shown in broken lines) thereto, and a mounting groove, generally designated 28.
  • Armrest assembly 14 generally known in the art, includes an armrest pad 15 and armrest support frame 16.
  • Support frame 16 includes a downwardly extending post portion 17 which is formed for insertion into post receiving bars or opening 26.
  • armrest assembly 14 includes a second post portion (not shown) situated on the opposing end of armrest support 16.
  • two mounting assemblies 20 preferably couple armrest assembly 14 to wheelchair frame 10.
  • a typical wheelchair includes a right side armrest assembly (FIGURES 1-3) and a left side armrest assembly (not shown) which are both positioned adjacent a seat assembly (not shown) carried by wheelchair frame 10.
  • fasteners generally designated 29 and often in the form of nuts 30 and bolts 32, are provided at predetermined and fixed positions along frame member 18 which secure armrest mounting assembly 20 thereto.
  • Fasteners 29 extend through bolt apertures 19 in frame support 18 (FIGURE 2) and must be capable of being released or tightened to pull mounting block 20 against a mounting surface 12 of armrest frame member 18, as will be discussed in greater detail below. It will be appreciated, however, that fasteners other than a bolt and nut will be capable of being used with the mounting blocks of the present invention without departing from the true spirit and nature of the present invention.
  • block body 22 is substantially a solid ret . ngular body formed of a rigid material such as met i, plastic, ceramic or the like. Body 22, however, can be virtually any geometric shape.
  • armrest post receiving means 26 is provided by a receiving aperture, opening or channel 26 extending vertically through body 22 and is dimensioned to snugly receive the distal end of post portion 17.
  • mounting assembly 20 is provided with a means for aligning the post receiving opening 26 with the corresponding armrest post portion 17.
  • body 22 is formed with a groove 28 positioned adjacent to and extending across frame engaging surface 24. Groove 28 is formed and dimensioned to slidably receive an enlarged head 36 of fastener 29.
  • body 22 may be repositioned relative to fasteners 29 and armrest frame support 18. Accordingly, mounting block 20 may be moved or displaced through a plurality of positions along frame member 18, and fastener heads 18 will slide in, groove 28, as indicated by arrows 38.
  • Post receiving channel or opening 26 thereby is repositioned into alignment with post portion 17.
  • the present invention permits substantial adjustment of the armrest mounting block along the longitudinal axis of armrest frame member 18. Not only does this facilitate easy removal and installation of armrest assemblies 14, but also permits a greater degree of interchangeability between armrests of differing length dimensions.
  • Groove 28 preferably is positioned substantially centrally of frame engaging surface 24 which assists positioning of frame engaging surface 24 against mounting surface 12.
  • fasteners 29 are convention bolts having hexagonal heads 36.
  • a cross sectional view of mounting groove 28 (FIGURE 3) illustrates that groove 28 is substantially T-shaped with an enlarged area matingly receiving opposed lands of hex-head 36 and a neck portion which slidably receives the bolt shaft 40.
  • nut 30 may be turned relative to corresponding bolt 32 to tighten the fastener without rotating the bolt or having to hold bolt 32.
  • the present invention may function properly using only one fastener 29 because the cross-sectional conformity of groove 28 prevents bolt rotation while still permitting sliding adjustment of the mounting block on the bolt.
  • FIGURES 1 and 3 illustrate the arcuate or cylindrical shape of frame engaging surface 24 so that frame engaging surface 24 seats substantially flush against mounting surface 12.
  • mounting groove 28 and fasteners 29, in combination with arcuate surface 24, provide stability and securely affix mounting assembly 20 against armrest support frame 18 when fasteners 29 are tightened.
  • Surface 24, of course, may have other shapes and still provide the sliding engagement yet stability required for the adjustable armrest mount of the present invention.
  • mounting assembly 20 also includes latch means, generally designated 46, which assists in retaining post portions 17 in post receiving openings 26.
  • Latch means 46 includes a latch lever 48 having a handle 50, and a piston or shaft 52 reciprocally retained in a channel 54 in body 22.
  • Latch lever 48 is pivotally mounted, via pin 56, proximate one end of shaft 52, as shown in FIGURE 2.
  • the inner end 58 of shaft 52 protrudes radially into post receiving opening 26, and moves between an extended position (shown in solid lines) and a retracted position (shown in broken lines) .
  • Post portion 17 includes a mating aperture (not shown) extending therethrough which is formed to be aligned with and receive the protruding end 58 of retainment shaft 52. Accordingly, when protruding end 58 engages the mating aperture, post portion 17 is retained in receiving aperture 26.
  • a spring means biases latch lever 48 in either one of two positions: the extended position which protrudes shaft 52 into post receiving aperture 26; or the retracted position which retracts shaft 52 into shaft aperture 54 (shown in broken lines) . Movement of retainment shaft 52 is controlled by latch lever 48. As shown in FIGURE 2, retainment shaft 52 may be retracted through the pivotal movement (arrow 60) of latch lever 48 about pin 60. Accordingly, post member 17 may then be removed from mounting block 20.
  • both mounting blocks 20 used to secure armrest assembly 14 to wheelchair frame 10 are adjustable. It will be understood, however, that it also is possible to provide only one of the armrest mounting assemblies as adjustable assemblies and the other, usually the rear mounting block, as a fixed or conventional mounting block. Additionally, the armrest mounting assembly of the present invention can be used with armrest assemblies in which there is a single mounting post in order to provide a means for adjustment of the position at which the single post is secured to the wheelchair frame.

Landscapes

  • Seats For Vehicles (AREA)

Abstract

Ensemble de montage d'un accoudoir (20) servant à monter un ensemble d'accoudoirs inversé en forme de U (14) sur un fauteuil roulant possédant un châssis (10). L'ensemble de montage (20) comprend un corps (22) conçu pour loger une extrémité des parties de bras de l'accoudoir (17). Des dispositifs de fixation déclenchables (29) accouplent le corps (22) du bloc de montage de l'accoudoir au châssis du fauteuil roulant (10). L'ensemble de montage (20) comprend une gorge de montage (28) définie par le corps (22) à proximité d'une surface d'accouplement au châssis (24) dudit corps (22). La gorge (28) est conçue et dimensionnée pour loger de façon coulissante une tête agrandie (36) du dispositif de fixation (29) servant au déplacement du bloc de montage (20) sur une pluralité de positions le long de l'élément de châssis (18) du fauteuil roulant, quand le dispositif de fixation (29) n'est pas serré. Ce déplacement permet de réaliser un alignement entre la partie de bras de l'accoudoir (17) et le corps de montage (22). De plus, la gorge (28) retient la tête (36) du dispositif de fixation (29), afin d'aligner fixement le bloc de montage (20) sur les parties des bras de l'accoudoir éloignées les unes des autres.
PCT/US1993/001146 1992-02-14 1993-02-10 Ensemble de montage d'un accoudoir reglable WO1993015632A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/836,093 1992-02-14
US07/836,093 US5255956A (en) 1992-02-14 1992-02-14 Adjustable armrest mounting assembly

Publications (1)

Publication Number Publication Date
WO1993015632A1 true WO1993015632A1 (fr) 1993-08-19

Family

ID=25271228

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/001146 WO1993015632A1 (fr) 1992-02-14 1993-02-10 Ensemble de montage d'un accoudoir reglable

Country Status (3)

Country Link
US (1) US5255956A (fr)
AU (1) AU3660393A (fr)
WO (1) WO1993015632A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0963720A1 (fr) * 1997-04-24 1999-12-15 Martin Bock Kunststoffverarbeitung Platine de siège universelle pour chaises de bureau
EP2540274A1 (fr) 2011-04-14 2013-01-02 Sunrise Medical GmbH & Co. KG Ensemble de montage

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5366276A (en) * 1993-02-05 1994-11-22 Hobson Blaine M Adjustable arm rest
JP2500932Y2 (ja) * 1993-05-12 1996-06-12 株式会社内田洋行 椅 子
US5439268A (en) * 1994-06-14 1995-08-08 Shin Yen Enterprise Co., Ltd. Adjustable armrest assembly for a chair
AU697514B2 (en) * 1994-11-17 1998-10-08 Paccar Inc. Extruded license plate mounting bracket for multiple license plates
US5829721A (en) * 1997-04-04 1998-11-03 Jurik; Ladislav Support
US6109685A (en) * 1999-10-20 2000-08-29 Lindsey; Donna L. Lounge chair
US6715784B2 (en) 2000-05-31 2004-04-06 Sunrise Medical Hhg Inc. Method programming and operating a wheelchair having tilt and recline functions
TW524111U (en) * 2002-04-03 2003-03-11 Aidc Aerospace Ind Dev Corp Multifunctional adjustment device for wheelchair
DE202004005653U1 (de) * 2004-04-08 2004-07-15 Meyra Wilhelm Meyer Gmbh & Co. Kg Rollstuhlrahmen
US7527335B2 (en) * 2006-02-27 2009-05-05 Steelcase Inc. Seating unit with adjustable components
US7582987B2 (en) * 2007-02-27 2009-09-01 Kinpo Electronics, Inc. Double power sources switching circuit
US7850236B2 (en) * 2008-01-17 2010-12-14 Wonderland Nurserygoods Company Limited Rotatable armrest assembly
US10619807B1 (en) * 2017-08-02 2020-04-14 Regalo International, Llc Gate light apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US877274A (en) * 1906-12-17 1908-01-21 Henry E Weber Arm-rest.
US3265436A (en) * 1964-08-10 1966-08-09 Bombard Nelson J La Tray attachment for chairs
US3614085A (en) * 1969-05-12 1971-10-19 John B Cunningham Adjustable arm board
US4674798A (en) * 1984-09-13 1987-06-23 Deere & Company Vehicle seat armrest adjustment mechanism
US4815688A (en) * 1987-03-09 1989-03-28 Wood Charles F Mounting for attachments to a wheelchair, a geriatric chair and the like

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767260A (en) * 1971-08-20 1973-10-23 Gendron Diemer Inc Horizontally adjustable armrests for wheelchairs
NL7309461A (nl) * 1973-07-06 1975-01-08 Robert Johannes Van Seenus Invalidestoel- of wagen.
US5143422A (en) * 1991-04-22 1992-09-01 Gerd Althofer Adjustable active arm support for keyboard operators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US877274A (en) * 1906-12-17 1908-01-21 Henry E Weber Arm-rest.
US3265436A (en) * 1964-08-10 1966-08-09 Bombard Nelson J La Tray attachment for chairs
US3614085A (en) * 1969-05-12 1971-10-19 John B Cunningham Adjustable arm board
US4674798A (en) * 1984-09-13 1987-06-23 Deere & Company Vehicle seat armrest adjustment mechanism
US4815688A (en) * 1987-03-09 1989-03-28 Wood Charles F Mounting for attachments to a wheelchair, a geriatric chair and the like

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0963720A1 (fr) * 1997-04-24 1999-12-15 Martin Bock Kunststoffverarbeitung Platine de siège universelle pour chaises de bureau
EP2540274A1 (fr) 2011-04-14 2013-01-02 Sunrise Medical GmbH & Co. KG Ensemble de montage

Also Published As

Publication number Publication date
AU3660393A (en) 1993-09-03
US5255956A (en) 1993-10-26

Similar Documents

Publication Publication Date Title
US5255956A (en) Adjustable armrest mounting assembly
US5564786A (en) Modular adjustable seat frame for wheelchairs
US6685385B1 (en) Versatile guide rail clamp
US7980580B2 (en) Clamping assembly
DE69934733T2 (de) Vorrichtung und Verfahren zum Befestigen einer Gewindestange an einer Profilschiene
US6432108B1 (en) Transverse connector
US5544938A (en) Mounting apparatus for securing independent sections of a sectional sofa assembly
US4944235A (en) Attachment mechanism for attaching a desk top to a support structure
US5228711A (en) Tray assembly for wheel chairs
US20040104614A1 (en) Adjustable seat support for a wheelchair
US4638546A (en) Method and means for mounting a vehicle seat
DE10022789A1 (de) Kindersitz
DE19924218A1 (de) Stuhl mit abnehmbarer Arbeitsfläche
US20190291294A1 (en) Alignment Tool
US5626221A (en) Tapered clamp support rod
DE10108311A1 (de) Sitzschale mit verstellbaren Stützelementen
EP1640520A2 (fr) Connection
US5988244A (en) Safety liner for protecting tubeless tires
EP0885755A1 (fr) Support de sécurité pour pneumatiques sans chambre à air
DE4303636C1 (de) Polstermöbel
DE10108312A1 (de) Verstellbare Sitzschale
US6511131B1 (en) Interchangeable accessory anchoring device for wheelchair or the like
EP0076475B1 (fr) Petite remorque multi-usages démontable
DE19912111C1 (de) Fahrgastsitz
US6585314B2 (en) Tablet arm attachment for folding chair having ganging feature

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU CA FI JP KR NO NZ

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA